docs: def get_num_words_with_entropy(bits_of_entropy, wordlist):
      """ Gets the number of words randomly selected from a given wordlist that
          would result in the number of bits of entropy specified.
      """
      entropy_per_word = math.log(len(wordlist))/math.log(2)
      num_words = int(math.ceil(bits_of_entropy/entropy_per_word))
      return num_words